Maxibright 315w Daylight CDM Lamps

Full-spectrum daylight for tighter, denser growth

The Maxibright 315w Daylight CDM lamp is a 315W ceramic metal halide (CDM/CMH) bulb built for growers who want a fuller, more daylight-balanced spectrum than a red-heavy HPS bulb can offer. It runs on a dedicated 315w CMH ballast (not a standard HPS or MH ballast) and is available in different colour temperatures to suit vegetative or flowering work, delivering the high CRI (around 90) that makes deficiencies and pests far easier to spot in the canopy.

Key Benefits

• Full daylight spectrum far closer to natural sunlight than standard HPS
• Compact growth with tighter internodes and less wasted stretch
• High CRI (~90) for accurate colour rendering and easier canopy checks
• Colour-temperature options to bias toward veg or flower
• Long lamp life compared with a standard HPS or MH bulb

Struggling with stretched, leggy growth under standard HPS?

A narrow, red-heavy spectrum pushes plants to stretch upward chasing light, leaving weak stems and wide gaps between nodes. The broader, more balanced output of a CDM lamp encourages shorter internodes and denser growth, while the added UV and blue support tighter structure and stronger essential-oil production, without giving up the intensity you need for solid yields.

How to Use

• Fit the lamp into a reflector and ballast designed specifically for 315w CMH/CDM lamps; it is not interchangeable with HPS or MH fittings
• Handle the PGZ18 base and quartz body with a clean cloth, never bare fingers
• Run the same daily photoperiod you would use for an HPS lamp
• Set lamp-to-canopy height per your reflector's guidance and raise it as plants grow to avoid light burn